MESON Chess Problem Database

Problem Display
PID: 266030 (6R1/6Q1/B1N3bN/2p1P2n/2r2P2/2p1Pk1p/7P/2B1K2R w K - 0 1)

Rietveld, Johannes Jacob

Probleemblad, 1950

6R1/6Q1/B1N3bN/2p1P2n/2r2P2/2p1Pk1p/7P/2B1K2R

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.0-0#
    • 1...Be4
      • 2.Rf1#
      • 2.Qg4#
  • Tries
    • 1.Bb7?
      • threat
        • 2.Sd4#
      • 1...Kg2
        • 2.Sd4#
      • 1...Ke4
        • 2.Sb4#
      • 1...Rd4
        • 2.Sxd4#
      • 1...Be4
        • 2.Rf1#
        • 2.Qg4#
      • 1...Re4!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Sd4#
      • 1...Kg2
        • 2.Sd4#
      • 1...Ke4
        • 2.Sb4#
      • 1...Rd4
        • 2.Sxd4#
      • 1...Re4
        • 2.0-0#
      • 1...Be4
        • 2.Rf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(d);P_PINP(E),SBLOCK::0-0
  • Tries
    • Try
      • B(H);
      • Threat
        • B(H)+S(I),DCHECK
      • Vars
        • K(b);P_SPINB(g),S_FLIGHT::B(H)+S(I)
        • K(b);S_CUTB(g),S_CUTR(d),S_FLIGHT::B(H)+S(I)
        • R(d);::B(H)+S(I),DCHECK,XR(d)
      • Refutation
        • R(d);P_PINP(E)
  • Actual
    • Q(K);
    • Threat
      • QAB(K)+S(I),DCHECK
    • Vars
      • K(b);P_SPINB(g),S_FLIGHT::QAB(K)+S(I)
      • K(b);S_CUTB(g),S_CUTR(d),S_FLIGHT::QAB(K)+S(I)
      • R(d);::QAB(K)+S(I),DCHECK,XR(d)
      • R(d);P_PINP(E),SBLOCK::0-0
      • B(g);SBLOCK::R(C)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).